Home / 127,643.52-176,146.57-70,281.65

Finding the Fourth Proportional to 127,643.52, 176,146.57 and 70,281.65

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Solution

The fourth proportional to 127,643.52, 176,146.57 and 70,281.65 is: 96,987.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,643.52 : 176,146.57 = 70,281.65 : x
  2. Step 2: Convert to fraction form
    127,643.52/176,146.57 = 70,281.65/x
  3. Step 3: Cross multiply
    127,643.52x = 176,146.57 × 70,281.65
  4. Step 4: Simplify right side
    127,643.52x = 12,379,871,581.44
  5. Step 5: Solve for x
    x = 12,379,871,581.44/127,643.52
  6. Step 6: Final answer
    x = 96,987.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.